2. Greatest Common Factor
List the factors of 2 numbers, 16 and 12
16: 1,2,4,8,16
12: 1,2,3,4,6,12
Which factors do they have in common?
1,2,4 are common Factors
What is the largest factor?
4
3. Least Common Multiple
List the Multiples of 3 and 7
3,6,9,12,15,18,21,24,27,30,33,36,39,42
7,14,21,28,35,42
What multiple do 3 and 7 have in common?
21 and 42
Which multiple is the smallest?
21 is the least common multiple
4. GCF
Now you know what Greatest Common Factor is!
Next up GCF Word Problem!s
5. LCM
Now you know what Least Common Multiple is!
Next up LCM word problems!
